A passage argues that anonymizing patient records for research purposes adequately protects privacy. A critic points out that re-identification attacks have successfully de-anonymized 87% of records using only zip code, birth date, and sex. The critic's point most directly shows that:
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A
Research using patient data should be banned entirely.
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B
Anonymization techniques may provide weaker privacy protection than claimed.
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C
The 87% figure was derived from an unrepresentative sample.
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D
Privacy and research utility are inherently irreconcilable goals.